Seagate ST33000651SS, Constellation. Hard drive capacity: 3000 GB, Hard drive interface: Serial ATA, Hard drive speed: 7200 RPM. Power consumption (typical): 11.33 W, Input voltage: 5 - 12, Start-up current: 1.7 A. Width: 4.01" (101.8 mm), Height: 1.03" (26.1 mm), Depth: 5.79" (147 mm). Data transfer rate: 6 Gbit/s